diff --git a/include/openssl/ec.h b/include/openssl/ec.h
index 230d395..4957066 100644
--- a/include/openssl/ec.h
+++ b/include/openssl/ec.h
@@ -373,5 +373,8 @@
 #define EC_R_WRONG_ORDER 125
 #define EC_R_BIGNUM_OUT_OF_RANGE 126
 #define EC_R_WRONG_CURVE_PARAMETERS 127
+#define EC_R_DECODE_ERROR 128
+#define EC_R_ENCODE_ERROR 129
+#define EC_R_GROUP_MISMATCH 130
 
 #endif  /* OPENSSL_HEADER_EC_H */